CHANGES IN THE POPULATION OF INFECTIVE ENDOMYCORRHIZAL FUNGI IN A RICE-BASED CROPPING SYSTEM
CHANGES IN THE POPULATION OF INFECTIVE ENDOMYCORRHIZAL FUNGI IN A RICE-BASED CROPPING SYSTEM
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DOI：
10.1007/bf02370669
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发表时间：
1987-01-01
期刊：
影响因子：
4.9
通讯作者：
MEW, TW
中科院分区：
文献类型：
--
作者：
ILAG, LL;ROSALES, AM;MEW, TW
在两个不同层次的灌溉稻田和一个无水稻田的稻作系统的不同阶段，测定了土著泡囊-丛枝菌根（VAM）真菌的感染性繁殖体的数量。用最大可能数法估计了VAM真菌的种群数量。在灌溉农场的菌根接种量始终低于在排水不良的低洼领域与水稻种植模式比在该领域中排水较好的上层与水稻玉米绿豆模式。感染性VAM真菌的人口普遍较低后，湿季水稻作物时，该领域被淹没了很长一段时间，在休闲期间增加杂草的存在下，并在旱季玉米或水稻作物成熟时最高。在干旱地区，绿豆作物成熟期的内生菌数量最高，水稻育秧前整地后的内生菌数量最低。
The numbers of infectious propagules of indigenous vesicular-arbuscular mycorrhizal (VAM) fungi were determined at different stages of the rice-based cropping systems in two irrigated rice fields of varying strata and in a rainfed field. The most-probable-number method was used to estimate the infecive VAM fungal population. On the irrigated farms the mycorrhizal inoculum was consistently less in the poorly drained low-lying field with a rice-rice cropping pattern than in the field in the better-drained upper stratum with a rice-corn-mungbean pattern. The population of infective VAM fungi was generally low after the wet season rice crop when the field was inundated for a long period, increased during fallow in the presence of weeds, and was highest upon the maturity of the dry-season corn or rice crop. In the rainfed area the highest endophytic population was found at maturity of the mungbean crop and the lowest after land preparation prior to rice seedling.